Finding the Fourth Proportional to 19,779,208.07, 29,672,161.86 and 6,821,840.57
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Solution
The fourth proportional to 19,779,208.07, 29,672,161.86 and 6,821,840.57 is: 10,233,916.18
Step by Step Solution
- Step 1: Write the proportion equation
19,779,208.07 : 29,672,161.86 = 6,821,840.57 : x - Step 2: Convert to fraction form
19,779,208.07/29,672,161.86 = 6,821,840.57/x - Step 3: Cross multiply
19,779,208.07x = 29,672,161.86 × 6,821,840.57 - Step 4: Simplify right side
19,779,208.07x = 202,418,757,576,154.66 - Step 5: Solve for x
x = 202,418,757,576,154.66/19,779,208.07 - Step 6: Final answer
x = 10,233,916.18
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.